Ultra Pure High-Potency 5.0% Niacinamide Serum, 1 oz.

4.6 (565)
Limited-Time Special
$27.00$36.00

Product Details

Web ID: 15795951

A concentrated facial serum formulated with just 10 ingredients (aqua/water, niacinamide, glycerin, propanediol, methyl gluceth-20, hydroxyacetophenone, sodium hyaluronate, caprylyl glycol, carbomer and sodium hydroxide) to help visibly reduce oil and minimize the look of redness.

  • Product Features

    • WHAT IT IS:
    • A serum with 5% niacinamide
    • WHAT IT DOES:
    • Helps visibly reduce excess oil and minimize the look of redness
    • INGREDIENT HIGHLIGHTS:
    • Niacinamide, the form of vitamin B3 used within Kiehl's formulas, helps visibly brighten skin; when used in topical skincare formulas, niacinamide can also help balance skin's surface oil
    • SKIN TYPES:
    • For all skin types, including sensitive skin
    • HOW TO USE:
    • In the morning and evening, apply 2-3 drops to clean, dry skin
    • Skin Hacks:
    • Zone treat your face by applying the serum to areas prone to oiliness and breakouts and following with your favorite moisturizer where needed
    • Layer with the Hyaluronic Acid Serum to hydrate and rebalance skin's moisture
    • Layer with the Glycolic Acid Serum to gently exfoliate and improve texture
    • RESULTS:
    • After 1 week, skin feels soothed*
    • Instantly reduces excess oil by 58%**
    • Reduced blemishes in 1 week***
    • *Based on reports by consumers in a 4-week study
    • **Based on instrumental measurements in a 4-week clinical study
    • ***Based on expert grading in a 4-week clinical study
  • Shipping & Returns

    • This item qualifies for Free Shipping with minimum purchase! exclusions & details
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.
    • Please call customer service for returns.

Ratings & Reviews

4.6/5

565 star ratings, 560 reviews

Write a Review
395
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6
4
16 days ago
from Philipsburg, NJ

Trusted because it works.

I trust this brand for its true nature and effective products.

Recommends this product

2 months ago
from New York
Received Free ProductNo

Byebye blemishes

I LOVE this product. I have super sensitive acne prone combination skin and shockingly this product clears my pimples within a few days without drying or causing eczema patches. It's pricey but it works.

Recommends this product

Customer review from kiehls.com

2 months ago
from Kansas
Received Free ProductNo

Great product

I can always tell a difference in my skin if I run out of this. Helps with oil control a lot.

Recommends this product

Customer review from kiehls.com

2 months ago

One of the best niacinamide serums around

[This review was collected as part of a promotion.] Great, clean serum that doesn't irritate and just feels great on skin.

Customer review from bloomingdales.com

3 months ago
from New York, NY
Received Free ProductNo

A total game change for oily skin

It has been recommended that I try products with niacinamide for oily skin. I tried at least five before coming across this formula by Kiehl's, and all I can say is wow. It has controlled my oil production throughout the day, and after three weeks of use, it has cleared my skin imperfections. With this product, I can have bright, clear, non-oily skin of blemishes. I highly recommend it.

Recommends this product

Customer review from kiehls.com

4 months ago

Straight to the point

[This review was collected as part of a promotion.] I absolutely love the clean ingredients. A niacinamide serum that’s straight to the point. I apply before tret to help with pigmentation.

Recommends this product

Customer review from kiehls.com

4 months ago
from South Carolina
Received Free ProductNo

Miracle serum!

I will swear by this serum! Reduce the redness on my face immediately!

Recommends this product

Customer review from kiehls.com

5 months ago
from NY

Quality but some days I still feel oily

[This review was collected as part of a promotion.] Quality but some days I still feel oily. On days where it’s not humid or hot it works ok but I wish it was more matte

Recommends this product

Customer review from kiehls.com